I think there's some confusion regarding what the statistics are measuring. They're not just counting the total number of checkins. They're grouped by device. So, if I check the Play Store 50 times during a month from my Galaxy Nexus running ICS, it's counted as one hit for ICS, not 50. So it doesn't matter if users with newer devices checkin more often. As long as they checkin even once, they're counted.

Correct. I thought that was the way Jragosta understood it when he first posted. Since then it appears he might not have gotten it totally right. No doubt he'll reply unless he realizes he wasn't completely correct. In that case I wouldn't expect any reply.